000
AXPZ20 KNHC 181600
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Fri Nov 18 2022

Tropical Weather Discussion for the eastern Pacific Ocean from
03.4S to 30N, east of 120W including the Gulf of California, and
from the Equator to 30N, between 120W and 140W. The following
information is based on satellite imagery, weather observations,
radar, and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1550 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: Gale-force winds continue to
prevail across the Gulf of Tehuantepec, with winds and 
accompanying rough seas extending 315 nm downstream. Winds are
expected to diminish below gale force by early Sat morning as
northerly winds in the Bay of Campeche diminishes. Fresh to near
gale force winds will prevail on Sat and increase again to gale 
force Sun morning, continuing into Tue morning. Seas during the
second gale event will build to 12 ft. For further details, 
please see the latest NWS High Seas Forecast issued by the 
National Hurricane Center at 
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from 08N83W to 08N96W to 10N109W. The
ITCZ continues from 10N109W to 09N134W. Scattered moderate 
convection is from 07N to 15N between 100W and 126W, and N of 
03N E of 82W, including the Gulf of Panama and offshore Colombia.

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Refer to Special Features section above for details on a Gale 
Warning currently in effect for the Gulf of Tehuantepec.

Elsewhere, a weak pressure gradient across the region is supporting
gentle to locally moderate NW winds along with 5 ft seas, except
for 3 ft in the Gulf of California. 

For the forecast, gale-force winds will continue across the Gulf
of Tehuantepec through tonight, then return on Sun continuing
through Tue. Strong high pressure will build across the Great
Basin on Sat morning, increasing the NW winds across the northern
Gulf of California to fresh to strong with building seas to 5 ft.
Moderate to fresh NW winds will extend to the entrance of the 
gulf Sat evening and prevail through early Tue morning. Gentle to
locally moderate winds are forecast to remain elsewhere. 

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...

Fresh gap winds are ongoing in the Papagayo region. Elsewhere,  
gentle to moderate S to SW winds are across the Central and South
America offshore waters south of 10N with 3 to 5 ft in SW swell.
Gentle variable winds and slight seas prevail elsewhere.

For the forecast, moderate to fresh easterly NE to E winds will
persist across the Gulf of Papagayo and coast of Nicaragua
through early next week. Wave heights will likely build to 7 ft 
beyond 90 nm off Guatemala through the end of the week due to 
swell generated from gale force gap winds nearby in the Gulf of 
Tehuantepec. Gentle to moderate winds will persist elsewhere 
through the forecast period along with slight to moderate seas. 

REMAINDER OF THE AREA...

Broad surface ridging persists north of 10N, supporting moderate
to fresh trade winds from 10N to 25N west of 110W, with 5 to 7 
ft wave heights, although pockets of seas to 8 ft are noted 
along the ITCZ and near outflow from sporadic convection. NW 
swell W of 130W is leading to seas of 8 to 10 ft N of 10N. 

For the forecast, moderate to fresh easterly winds will prevail 
into early next week across most of the basin as a reinforcing 
NW swell moves in. Seas will build to 9 ft near the ITCZ west of 
125W as high pressure north of the area supports a broad area of
fresh trade winds, and mixes with the decaying long-period 
swell. SW swell will support seas building to 9 ft along and 
south of 03.5S tonight into Sat.

$$
Ramos